tests/shaders/useprogram-refcount-1.c

   1 /*
   2  * Copyright © 2010 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *    Eric Anholt <eric@anholt.net>
  25  *    Neil Roberts <neil@linux.intel.com>
  26  *
  27  */
  28
  29 /** @file useprogram-refcount-1.c
  30  *
  31  * test_delete_active: tests that a metaops call (glDrawPixels()) doesn't lose the last
  32  *                     reference on an active, deleted shader prorgam (Bug #31194)
  33  *
  34  * test_delete_duplicate: tests for shader cache errors (issue #2596) by creating 2
  35  *                        identical program, deleting one of them, and using the other
  36  *                        to draw something.
  37  */
  38
  39 #include "piglit-util-gl.h"
  40
  41 PIGLIT_GL_TEST_CONFIG_BEGIN
  42
  43         config.supports_gl_compat_version = 10;
  44
  45         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 static enum {
  50         TEST_DELETE_ACTIVE,
  51         TEST_DELETE_DUPLICATE
  52 } test_mode;
  53
  54 static GLint
  55 build_program(void)
  56 {
  57         GLint vs, fs;
  58         const char *vs_source =
  59                 "void main()\n"
  60                 "{\n"
  61                 "       gl_Position = gl_Vertex;\n"
  62                 "}\n";
  63         const char *fs_source =
  64                 "void main()\n"
  65                 "{\n"
  66                 "       gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0);\n"
  67                 "}\n";
  68
  69         piglit_require_gl_version(20);
  70
  71         vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
  72         fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, fs_source);
  73         return piglit_link_simple_program(vs, fs);
  74 }
  75
  76 enum piglit_result
  77 test_delete_active(void)
  78 {
  79         bool pass = true;
  80         float green[4] = {0.0, 1.0, 0.0, 0.0};
  81         uint8_t pixel[4] = {0x00, 0xff, 0x00, 0xff};
  82
  83         GLint prog = build_program();
  84         glUseProgram(prog);
  85         glDeleteProgram(prog);
  86
  87         /* Set up fixed function to draw red if we lose our shader. */
  88         glColor4f(1.0, 0.0, 0.0, 0.0);
  89
  90         /* Tiny drawpixels */
  91         glDrawPixels(1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
  92
  93         /* Draw over the whole screen with the shader. */
  94         piglit_draw_rect(-1, -1, 2, 2);
  95
  96         pass &= piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
  97                                        green);
  98
  99         piglit_present_results();
 100
 101         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 102 }
 103
 104 enum piglit_result
 105 test_delete_duplicate(void)
 106 {
 107         bool pass = true;
 108         float green[4] = {0.0, 1.0, 0.0, 0.0};
 109         uint8_t pixel[4] = {0x00, 0xff, 0x00, 0xff};
 110
 111         GLint prog = build_program();
 112         /* Build a second program, using the same shaders */
 113         GLint prog_dup = build_program();
 114
 115         /* Set up fixed function to draw red if we lose our shader. */
 116         glColor4f(1.0, 0.0, 0.0, 0.0);
 117
 118         glDrawPixels(1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel);
 119
 120         glUseProgram(prog);
 121         piglit_draw_rect(-1, -1, 2, 2);
 122
 123         /* Delete the duplicate */
 124         glDeleteProgram(prog_dup);
 125
 126         /* Re-draw over the whole screen with the shader. */
 127         piglit_draw_rect(-1, -1, 2, 2);
 128
 129         pass &= piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
 130                                        green);
 131
 132         piglit_present_results();
 133
 134         glDeleteProgram(prog);
 135
 136         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 137 }
 138
 139 enum piglit_result
 140 piglit_display(void)
 141 {
 142         switch (test_mode) {
 143                 case TEST_DELETE_DUPLICATE:
 144                         return test_delete_duplicate();
 145                 case TEST_DELETE_ACTIVE:
 146                 default:
 147                         return test_delete_active();
 148         }
 149 }
 150
 151 void
 152 piglit_init(int argc, char **argv)
 153 {
 154         test_mode = TEST_DELETE_ACTIVE;
 155         if (argc == 2 && strcmp(argv[1], "delete_dup") == 0)
 156                 test_mode = TEST_DELETE_DUPLICATE;
 157         piglit_require_gl_version(20);
 158 }